DE3484406D1 - METHOD AND APPARATUS FOR PRODUCING ANISOTROPIC MAGNETS. - Google Patents
METHOD AND APPARATUS FOR PRODUCING ANISOTROPIC MAGNETS.Info
- Publication number
- DE3484406D1 DE3484406D1 DE8484106414T DE3484406T DE3484406D1 DE 3484406 D1 DE3484406 D1 DE 3484406D1 DE 8484106414 T DE8484106414 T DE 8484106414T DE 3484406 T DE3484406 T DE 3484406T DE 3484406 D1 DE3484406 D1 DE 3484406D1
- Authority
- DE
- Germany
- Prior art keywords
- anisotropic magnets
- producing anisotropic
- producing
- magnets
- anisotropic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0273—Imparting anisotropy
- H01F41/028—Radial anisotropy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0231—Magnetic circuits with PM for power or force generation
- H01F7/0252—PM holding devices
- H01F7/0268—Magnetic cylinders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/033—Magnet
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10212783A JPS59226367A (en) | 1983-06-08 | 1983-06-08 | Production of anisotropic magnet roll |
JP11785783A JPS6010610A (en) | 1983-06-29 | 1983-06-29 | Manufacture of anisotropic magnet roll |
JP11786483A JPS6010279A (en) | 1983-06-29 | 1983-06-29 | Manufacture of anisotropic permanent magnet |
JP14713783A JPS6037577A (en) | 1983-08-11 | 1983-08-11 | Production of anisotropic magnet roll |
JP15597583A JPS6047409A (en) | 1983-08-26 | 1983-08-26 | Manufacture of anisotropic composite magnet |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3484406D1 true DE3484406D1 (en) | 1991-05-16 |
Family
ID=27526080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484106414T Expired - Lifetime DE3484406D1 (en) | 1983-06-08 | 1984-06-05 | METHOD AND APPARATUS FOR PRODUCING ANISOTROPIC MAGNETS. |
Country Status (3)
Country | Link |
---|---|
US (1) | US4604042A (en) |
EP (1) | EP0128508B1 (en) |
DE (1) | DE3484406D1 (en) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4678634A (en) * | 1985-04-18 | 1987-07-07 | Shin-Etsu Chemical Co., Ltd. | Method for the preparation of an anisotropic sintered permanent magnet |
US5229738A (en) * | 1987-06-16 | 1993-07-20 | Kinetron B.V. | Multipolar rotor |
JPH0452027Y2 (en) * | 1987-10-20 | 1992-12-08 | ||
GB8727851D0 (en) * | 1987-11-27 | 1987-12-31 | Ici Plc | Process for production of bonded magnet |
US5049053A (en) * | 1988-08-18 | 1991-09-17 | Hitachi Metals, Ltd. | Metal mold for molding anisotropic permanent magnets |
CA2014974A1 (en) * | 1989-03-18 | 1991-10-19 | Ken Ikuma | Dies for extrusion moulding |
EP0392799B2 (en) * | 1989-04-14 | 1998-11-25 | Daido Tokushuko Kabushiki Kaisha | Method and apparatus for producing anisotropic rare earth magnet |
JP2730766B2 (en) * | 1989-08-08 | 1998-03-25 | 住友金属鉱山株式会社 | Method of manufacturing injection molded powder metallurgy products |
US5145614A (en) * | 1990-02-14 | 1992-09-08 | Canon Kabushiki Kaisha | Process for preparing magnet made of resin |
EP0507324A3 (en) * | 1991-04-05 | 1993-07-28 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Composite molding of resin-bonded magnet for machine parts and process for producing the same |
JP2694092B2 (en) * | 1991-10-21 | 1997-12-24 | キヤノン株式会社 | Magnet roller, method for manufacturing the magnet roller, apparatus for manufacturing the magnet roller, developing unit, and copying apparatus including the developing unit |
EP0546559B1 (en) * | 1991-12-11 | 1997-04-16 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Magnet roll |
US5405561A (en) * | 1993-08-31 | 1995-04-11 | Dowbrands L.P. | Process for microperforating zippered film useful for manufacturing a reclosable zippered bag |
DE69429326T2 (en) * | 1993-12-27 | 2002-05-16 | Sumitomo Special Metals Co., Ltd. | Process for granulating powder |
US6302669B1 (en) * | 1995-05-31 | 2001-10-16 | Bridgestone Corporation | Apparatus for producing a solid magnet roller using a movable mold |
US5758242A (en) * | 1996-09-23 | 1998-05-26 | Xerox Corporation | Interlocking magnetic developer roll assembly and method of manufacturing |
US6125255A (en) | 1996-09-23 | 2000-09-26 | Xerox Corporation | Magnet assembly with inserts and method of manufacturing |
US5894004A (en) * | 1996-11-20 | 1999-04-13 | Xerox Corporation | Method for manufacturing magnetic rolls |
US6000922A (en) * | 1998-07-28 | 1999-12-14 | Xerox Corporation | Molding assembly for producing magnetic development rollers having precise magnetic development fields |
US6106759A (en) * | 1999-03-26 | 2000-08-22 | Cts Corporation | Variable orientation magnet molding tool |
US6123892A (en) * | 1999-05-14 | 2000-09-26 | Cts Corporation | Variable orientation magnet molding tool |
US7592889B2 (en) * | 2004-04-20 | 2009-09-22 | Aichi Steel Corporation | Anisotropic bond magnet for four-magnetic-pole motor, motor using the same, device for orientation processing of anisotropic bond magnet for four-magnetic-pole motor |
US8039998B2 (en) * | 2004-12-17 | 2011-10-18 | Hitachi Metals, Ltd. | Rotor for motor and method for producing the same |
JP2008233368A (en) * | 2007-03-19 | 2008-10-02 | Ricoh Co Ltd | Magnet roller, developer carrier, development device, process cartridge and image forming apparatus |
KR101390027B1 (en) * | 2010-04-05 | 2014-04-29 | 아이치 세이코우 가부시키가이샤 | Case-body bonded magnet, and method for producing same |
US20150197045A1 (en) * | 2014-01-10 | 2015-07-16 | Earth Magnets (Hong Kong) Company Limited | Method for manufacturing magnetic rollers and system thereof |
CN109419391A (en) * | 2017-08-31 | 2019-03-05 | 佛山市顺德区美的电热电器制造有限公司 | Disk mounting assembly and food processor |
JP2019105800A (en) * | 2017-12-14 | 2019-06-27 | コニカミノルタ株式会社 | Magnet roller, developing roller, developing device, and image forming apparatus |
CN110931236B (en) * | 2019-11-20 | 2021-07-13 | 杭州科德磁业有限公司 | Injection molding anisotropic bonding neodymium iron boron magnetic tile radiation orientation forming method and device |
CN111105918B (en) * | 2019-12-31 | 2022-07-29 | 上海三环磁性材料有限公司 | Compound magnetization device of permanent magnet rotor |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2398018A (en) * | 1941-09-26 | 1946-04-09 | Linley Anthony | Manufacture of permanent magnets |
BE527601A (en) * | 1953-04-11 | |||
JPS5162396A (en) * | 1974-11-27 | 1976-05-29 | Myazaki Kasei Kogyo Kk | |
JPS5347043A (en) * | 1976-10-12 | 1978-04-27 | Matsushita Electric Ind Co Ltd | Infrared ray lamp |
JPS556907A (en) * | 1978-06-30 | 1980-01-18 | Fujitsu Ltd | Nonsynchronous 4-phase modulation system |
JPS5669805A (en) * | 1979-11-10 | 1981-06-11 | Tdk Corp | Manufacture of anisotropic plastic magnet |
JPS56108207A (en) * | 1980-01-31 | 1981-08-27 | Fuji Xerox Co Ltd | Magnetic roll and manufacture thereof |
AT373901B (en) * | 1980-05-16 | 1984-03-12 | Henkel Kgaa | PROCESS FOR THE PARTIAL REDUCTION OF DELTA 4.17 (20) - AND IF NECESSARY FURTHER DOUBLE BONDINGS IN THE 1 AND / OR 9 (11) POSITION C 21 STEROID CARBONIC ACIDS AND THEIR ESTERS |
JPS57130407A (en) * | 1981-02-06 | 1982-08-12 | Daido Steel Co Ltd | Cylindrical anisotropic resin magnet |
JPS57164509A (en) * | 1981-04-03 | 1982-10-09 | Fuji Xerox Co Ltd | Manufacture of magnet roll |
JPS57170501A (en) * | 1981-04-14 | 1982-10-20 | Fuji Xerox Co Ltd | Production of magneto roll |
DE3124854C2 (en) * | 1981-06-24 | 1985-03-14 | Reinhard 8057 Eching Mühlbauer | High pressure injection system with ultrasonic atomization |
JPS5948742B2 (en) * | 1982-03-05 | 1984-11-28 | 住友ベークライト株式会社 | Mold for magnetic field forming |
-
1984
- 1984-06-05 DE DE8484106414T patent/DE3484406D1/en not_active Expired - Lifetime
- 1984-06-05 EP EP84106414A patent/EP0128508B1/en not_active Expired
- 1984-06-07 US US06/618,183 patent/US4604042A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0128508A2 (en) | 1984-12-19 |
US4604042A (en) | 1986-08-05 |
EP0128508A3 (en) | 1987-04-29 |
EP0128508B1 (en) | 1991-04-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |